316 Mr. E. J. Miers on Malaysian Crustacea. 



In a fine adult male without locality the granulations of 

 the carapace are somewhat less distinct. 



Matuta obtusifrons, Miers. 



Bali (a female). 



This species is easily distinguished by the strongly-marked 

 tubercles and obtuse front from M. laividactyla* . 



Leucosia pallida, var. obscura. 



Leucosia obscura, Bell, Trans. Linn. Soc. xxi. p. 285, pi. xxx. fig. 3 



(1855). 

 P Leucosia moresbiensis, Haswell, Proc. Linn. Soc. New S. Wales, iv. 



p. 49 (1879), var. 



Indo-Malayan seas (two females without definite locality). 



Mr. Haswell, in his excellent description of L. moresbiensis, 

 acknowledges its affinity to L. obscura. This description, 

 moreover, agrees better than that of Bell with the specimens 

 designated L. obscura in the Museum collection. In these 

 specimens there is a distinct row of granules on the inner 

 margin of the hand, and the granulation of the posterior and 

 postero-lateral margins of the carapace and the armature of 

 the fingers are precisely those of L. moresbiensis. The only 

 difference that I note is that in L. obscura (and L. pallida) 

 there are four, not three, large tubercles on the lower margin 

 of the thoracic sinus; but this alone would probably not 

 suffice to distinguish L. obscura from L. moresbiensis. It is 

 certain, therefore, either that Bell's description and figure are 

 inaccurate, or were based on specimens belonging to a distinct 

 species from the examples labelled L. obscura in the Museum 

 collection. 



Leucosia pallida, Bell, in all structural characteristics is 

 identical with L. obscura ; it differs only in the lighter colo- 

 ration, which may possibly be due to the bleaching of the 

 specimens. Among the specimens in the Museum collection 

 are some on which the granulation of the inner margin of the 

 hands is obsolete. 



Myra carinata, Bell. 

 Celebes, Macassar (a male). 



* I propose this name for the specimens that I, in my revision of the 

 genus, referred to M. lunaris (Herbst). Hilgendorf, who had before him 

 Herbst's typical example, has shown (Monatsb. Ak. Berlin, p. 810, 1878) 

 that the species designated M. rubrolineata is really the lunaris of Herbst ; 

 consequently the specimens I referred to lunaris must receive a new ap- 

 pellation. It was impossible, in the case of such nearly allied species, to 

 say, from the figure and description alone, what species Herbst had 

 designated lunaris. 



